Valve-spring lifter.



L. ououEswov. VALVE SPRING LIFTER. APPLICATION HLED MAR. 15. 1916 1,192,286. Patented July 25, 1916.

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LDUQUESNOYI VALVE SPRING LIFTER. APPLICATION FILED MAR. I5, 1916. I 1,1 92,286. Patented July 25,1916.-

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LOUIS DUQUESNOY, OF HIAWATHA, UTAH.

VALVE-SPRING LIFTER.

Specification of Letters Patent. Patented July 25, 19165.

Application mean hile, 1916. Serial No. 84,385.

To all :wlwm 'z't ntay'concem: V 7 Be it known that I, LOUIS Duoonsnor', a

citizen of the United States, residing at Hiawatha, in the countyof "Carbon and Stzite of Utah, haveinvented new and use ful Improvements'in Valve-Spring Lifters, of which the following is a specification.

This invention relates to certain novel and useful improvements in valve spring lifters for lifting the valve sprin s of internal combustion engines so that tie valves may be relieved of the influence of the spring and removed from the engine conveniently and quickly.

In carrying out the present invention, it

is my purpose to improve and simplify the general construction of valve spring lifters and to provide'a valve spring lifter which may be conveniently andquickly put into service and which may be operated to lift the valve spring with a minimum efiort on part of the operator. I

It is also mypurpose to provide a device of the class described which will'embrace the desired features of simplicity, efficiency and durability, and which may be stored in a small space so that the lifter may be carried about in a tool kit or tool box.

With .the above and other objects in view, the invention consists in the construction, combination and arrangement of parts hereinafter set forth-in and falling within the scope of the claim.

In the accompanying drawings; Figure 1 is a view in side elevation of a valve lifter constructed in accordance with my present invention, the same being shown in use, a portion of an engine being illustrated conventionally. Fig. 2 is a top plan view of the head of the lifter. Fig. 3 is a plan view. of the operating lever. Fig. 4 is a view in side elevation of the same. Fig. 5 is a cross sec tional view through one end of the operating lever. Fig. 6 is an enlarged side elevation of the head shown in Fig. 2.

My improved valve litter is particularly adapted for use in connection with motors having removable heads that are designed to be taken ofl of-thc cylinders in order that ac cess may be had to the valve, such, for instance, as a Ford motor. In this type of motor the head is usually secured in post tion on the cylinders by means of bolts passed. through alining openings in the head piece and the cylinder casting and these openings are as a rule, arrangedbetwcen the valves of the respective cylinders.

Referring now to the drawings in detail, 1 designates a head piece formed with laterally projccting wings 2, 2 adapted to overlap the valve heads and engage such heads. Formed in the head piece 1 and adapted to aline with the bolt holes between the valve heads is an opening and threaded through such opening and into the alining opening in the cylinder is a bolt 3 having the upper end thereof equipped with wings l whereby the bolt may be rotated. Immediately below the wings l, the bolt 3 is preferably provided with a lock nut 5 whereby the bolt may be piece, that is, the end remote from the valve eads, projects beyond the side wall of the engine and is formed with a downwardly projecting arm 6 having the lower end pro vided with a hook 7 8 designates an operating lever having one end portion rounded to form a handle 9, the

other end forked as at 10 to receive the valve stem,'and the central portion formed with a cross-shaped slot 11. The lower side.

of the lever 9 contiguous to the transverse portions of the slot 11 is "formed with grooves 12, while the upper surface of the forked end of the lever, contiguous to the fork, is formed with a depression 13.

14 designates a chain of suitable length of elongated links, as clearly illustrated in Fig. 1 of the drawings.

in practice the head piece of the cylinders oi the engine is removed and the head piece 1 secured in position to engage the wings 2 with the bonds of the valves of one of the cylinders, the bolts 3 holding the head. piece 1 in proper position. One endio't' the chain 14 is now engaged with the hook 1? and the other end of the chain passedlthrough the cross shaped slot ll. The forked end 10 of the lcvcris now slipped beneath. the lower end of the valve spring, around the stem of the ralvc,-and the lower end of the spring engages in the depression 13. 'lhcchain is now turned so that the upper end of the link immediately below the slot 11 engages in the grooves 12, thereby forming a Fulcrum for the lover 8 so that the latter may be swung to compress the spring and thereby spirit of the invention.

release the valve whereby the pin at the lower end of the valve stem maybe removed and the valve Withdrawn from the cylinder.

While I have herein shown. and described the preferred form of my invention by Way of illustration, I Wish it to. be understood that I do not limit or confine myself to the precise details of construction herein described and delineated, as modification and variation may be made Within the scope of the claim and without departing from the Ielaim: v

in a valve spring lifter of the class de scribed, a head piece adapted to be secured to the upper end of the cylinder, an arm,

4 formed on said head piece and depending therefrom, an operating lever having a forked end adapted to engage beneath the valve spring, and a handle end, and "formedv centrally with a cross-shaped slot, a chain having one end adapted to be secured to said army and the other end adapted to be passe u hrough said cross-shaped slot-,"insaidv lever, t e link of said chain immediately below said slot engaging the lever to form a fulcrum, and Wings formed integral with I"slaidd head piece and overlapping the valve ea s. E

In testimony whereof I affix my signature so 

